Universal current leakage testing adapter



FIG. 1 is a top view thereof;

FIG. 2 is a side view thereof;

FIG. 3 is an end view thereof; and,

FIG. 4 is a perspective view thereof.

The portions shown in shadow line are for illustrative purposes only and form no part of the claimed design. 

The ornamental design for universal current leakage testing adapter, as shown and described. 